Cyclin-Dependent Kinase Inhibition by New C-2 Alkynylated Purine Derivatives and Molecular Structure of a CDK2−Inhibitor Complex
作者:Michel Legraverend、Paul Tunnah、Martin Noble、Pierre Ducrot、Odile Ludwig、David S. Grierson、Maryse Leost、Laurent Meijer、Jane Endicott
DOI:10.1021/jm9911130
日期:2000.4.6
A new series of 2,6,9-trisubstituted purines, characterized by the presence of a common alkynyl substituent at C-2 and a range of different anilino/benzylamino groups at C-6, were synthesized. These compounds were evaluated for their capacity to inhibit cyclin-dependent kinase activity (CDK1-cyclin B) in vitro. Compounds 4e (N-6-p-Cl-benzylamino derivative) and 5e (N-6-m-Cl-anilino derivative) exhibited
合成了一系列新的2,6,9-三取代嘌呤,其特征是在C-2处存在一个常见的炔基取代基,在C-6处存在一系列不同的苯胺基/苄基氨基。评价了这些化合物在体外抑制细胞周期蛋白依赖性激酶活性(CDK1-细胞周期蛋白B)的能力。化合物4e(N-6-p-Cl-苄氨基衍生物)和5e(N-6-m-Cl-苯胺基衍生物)表现出最强的抑制活性,IC(50)为60 nM。通过X射线晶体学测定化合物4b(N-6-对甲氧基苄基氨基衍生物)与人CDK2复合的结构,揭示了该分子抑制的分子基础。随后的分子建模研究使我们可以合理化这些化合物的SAR。